Home / 7,806.15-10,772.01-4,268.70

Finding the Fourth Proportional to 7,806.15, 10,772.01 and 4,268.70

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Solution

The fourth proportional to 7,806.15, 10,772.01 and 4,268.70 is: 5,890.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,806.15 : 10,772.01 = 4,268.70 : x
  2. Step 2: Convert to fraction form
    7,806.15/10,772.01 = 4,268.70/x
  3. Step 3: Cross multiply
    7,806.15x = 10,772.01 × 4,268.70
  4. Step 4: Simplify right side
    7,806.15x = 45,982,479.09
  5. Step 5: Solve for x
    x = 45,982,479.09/7,806.15
  6. Step 6: Final answer
    x = 5,890.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.